Let's look at two questions:
0.1 + 0.2 = 0.3; False9999999999999999 = 10000000000000000; True
The first problem is the problem of decimal precision, which has been discussed in many blogs in the industry. The second problem is that last year, the
I want to learn about the precision of javascript floating-point numbers, so that you can understand the real precision of JavaScript floating-point numbers, you can refer to the several numeric data types in most programming languages, but
Original article: http://demon.tw/copy-paste/javascript-precision.html
Precision loss of small numbers and big integers in Javascript
Title: Precision loss of small numbers and big integers in JavascriptAuthor: demonLink:
Summary of JavaScript floating-point number and operation precision AdjustmentJavaScript has only one numeric type number, and all the numbers in JavaScript are represented in the IEEE-754 standard format. The accuracy of floating-point numbers is
JavaScript has only one numeric type Number, and all numbers in Javascript are represented in IEEE-754 standard format. The precision of floating point numbers is not unique to JavaScript, because some decimals represent infinite digits in binary
Most programming languages have several numeric data types, but JavaScript has only one. You can use the TypeOf operator to see the type of numbers. Whether it's an integer or a floating-point number, JavaScript simply categorizes them as numbers.
Summary of JavaScript floating point number and operation Precision Adjustment
JavaScript has only one numeric type Number, and all numbers in Javascript are represented in IEEE-754 standard format. The precision of floating point numbers is not
Title: Loss of precision for JavaScript decimal and large integersAuthor: DemonLinks: http://demon.tw/copy-paste/javascript-precision.htmlCopyright: All articles of this blog are subject to the terms "Attribution-NonCommercial use-share 2.5 mainland
This article is divided into three parts
Some typical problems of JS digital precision loss
The reason for the loss of JS digital precision
Solution (one object + one function)
Some typical problems of JS digital precision loss
1.
Reason: JS in accordance with the 2 to deal with decimal subtraction, on the basis of arg1 arg2 precision extension or reverse expansion matching, so will appear as follows.
JavaScript (JS) decimal point subtraction problem, is a JS bug such as 0.3*
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